MongoDB Tutorial 2: Buttons 2
Jump to navigation
Jump to search
|
MongoDB Tutorial 2 : Introduction | Alternative control | Alternative control 2 | Basic Window App | Buttons 1 | Buttons 2 | Buttons 3 | Mongo-Start
|
|
| MongoDB Plugin UniServer 6-Carbo. |
Introduction
This page covers adding functionality to buttons Start MongoDB and Start Mongo Client
Top button
A button’s text is dynamic allowing it to be written and read. This capability allows a button to have more that one state. Current state is determined by reading its text.
Top button of our application has two states Start MongoDB and Apache and Stop MongoDB and Apache. following shows how to create a toggle button:
|
Toggle action:
|
$text = wb_get_text(wb_get_control($window, ID_DB_BUTTON));
if($text == START_DB_BTXT ){ // Start servers
wb_set_text(wb_get_control($window, ID_DB_BUTTON),STOP_DB_BTXT);
else{ // Stop servers
wb_set_text(wb_get_control($window, ID_DB_BUTTON),START_DB_BTXT);
}
|
Start
If the button is displaying Start MongoDB and Apache when clicked we want to perform the following actions:
- Start MongoDB server
- Start Apache server
- Set button text to stop
- Enable Mongo-client button
- Enable phpMoAdmin button
Gives the following code:
if($text == START_DB_BTXT ){ // Start server
//== Start Apache
$cmd = "../../usr/local/php/php.exe -n ../main/start_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Starting Apache"); // Inform user
//== Start MongoDB
start_mongo_no_auth();
wb_set_text($statusbar_mongo, " Starting MongoDB"); // Inform user
//== Set buttons
wb_set_text(wb_get_control($window, ID_DB_BUTTON),STOP_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), TRUE); // Enable Client button
wb_set_enabled(wb_get_control($window, ID_PHPMOADMIN_BUTTON), TRUE); // Enable Admin button
wb_set_text($statusbar_mongo, " Servers running"); // Inform user
}
Stop
If the button is displaying Stop MongoDB and Apache when clicked we want to perform the following actions:
- If Mongo-client running
- Prompt user to close it.
- Mongo-client not running
- Stop MongoDB server
- Stop Apache server
- Set button text to start
- Disable Mongo-client button
- Disable phpMoAdmin button
Gives the following code:
else{ // Stop server
if(mongo_client_running()){ // Client must be stopped before Mongo Server
$str = "Before you can stop MongoDB \n";
$str .= "Please close Mongo Client \n\n";
$str .= "Type EXIT to close client\n";
$str .= "Data from RAM needs to be written to disk.\n";
wb_message_box($window, $str, "CLIENT RUNNING", WBC_INFO);
wb_set_text($statusbar_mongo, " Clienr running"); // Inform user
break;
}
else{ // Client not running
//== Stop Apache
$cmd = "../../usr/local/php/php.exe -n ../main/stop_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Stopping Apache"); // Inform user
//== Stop MongoDB
stop_mongo_no_auth();
wb_set_text($statusbar_mongo, " Stopping MongoDB"); // Inform user
//==Set button text
wb_set_text(wb_get_control($window, ID_DB_BUTTON),START_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), FALSE); // DISABLE Client button
wb_set_enabled(wb_get_control($window, ID_PHPMOADMIN_BUTTON), FALSE); // Disable Test button
wb_set_text($statusbar_mongo, " Servers stopped"); // Inform user
}
}
Complete button code
//=== Start-Stop Servers ===================================================
case ID_DB_BUTTON: // Button toggles
$text = wb_get_text(wb_get_control($window, ID_DB_BUTTON)); // get button text
if($text == START_DB_BTXT ){ // Start server
//== Start Apache
$cmd = "../../usr/local/php/php.exe -n ../main/start_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Starting Apache"); // Inform user
//== Start MongoDB
start_mongo_no_auth();
wb_set_text($statusbar_mongo, " Starting MongoDB"); // Inform user
//== Set buttons
wb_set_text(wb_get_control($window, ID_DB_BUTTON),STOP_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), TRUE); // Enable Client button
wb_set_enabled(wb_get_control($window, ID_PHPMOADMIN_BUTTON), TRUE); // Enable Admin button
wb_set_text($statusbar_mongo, " Servers running"); // Inform user
}
else{ // Stop server
if(mongo_client_running()){ // Client must be stopped before Mongo Server
$str = "Before you can stop MongoDB \n";
$str .= "Please close Mongo Client \n\n";
$str .= "Type EXIT to close client\n";
$str .= "Data from RAM needs to be written to disk.\n";
wb_message_box($window, $str, "CLIENT RUNNING", WBC_INFO);
wb_set_text($statusbar_mongo, " Clienr running"); // Inform user
break;
}
else{ // Client not running
//== Stop Apache
$cmd = "../../usr/local/php/php.exe -n ../main/stop_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Stopping Apache"); // Inform user
//== Stop MongoDB
stop_mongo_no_auth();
wb_set_text($statusbar_mongo, " Stopping MongoDB"); // Inform user
//==Set button text
wb_set_text(wb_get_control($window, ID_DB_BUTTON),START_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), FALSE); // DISABLE Client button
wb_set_enabled(wb_get_control($window, ID_PHPMOADMIN_BUTTON), FALSE); // Disable Test button
wb_set_text($statusbar_mongo, " Servers stopped"); // Inform user
}
}
break;
//================================================ END Start-Stop Servers ==
Start Client
Starting the client requires running its corresponding function. If already running inform user and exit case statement. Code snippets as shown below:
//=== Start Client =========================================================
case ID_CLIENT_BUTTON: // Button
if(mongo_client_running()){ // Client must be stopped before Mongo Server
wb_set_text($statusbar_mongo, " No action taken client already running"); // Inform user
break;
}
else{
client_no_auth(); // Start a cmd window and run mohgo command line interface
wb_set_text($statusbar_mongo, " Client started"); // Inform user
}
break;
//===================================================== END Start Client ===
Complete handler function
Adding all the snippets of code gives the following
//=== 4) Handler Function =====================================================
function process_mongo($window, $id){
global $win_mongo;
global $statusbar_mongo;
switch($id) {
//=== Start-Stop Servers ===================================================
case ID_DB_BUTTON: // Button toggles
$text = wb_get_text(wb_get_control($window, ID_DB_BUTTON)); // get button text
if($text == START_DB_BTXT ){ // Start server
//== Start Apache
$cmd = "../../usr/local/php/php.exe -n ../main/start_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Starting Apache"); // Inform user
//== Start MongoDB
start_mongo_no_auth();
wb_set_text($statusbar_mongo, " Starting MongoDB"); // Inform user
//== Set buttons
wb_set_text(wb_get_control($window, ID_DB_BUTTON),STOP_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), TRUE); // Enable Client button
wb_set_enabled(wb_get_control($window, ID_PHPMOADMIN_BUTTON), TRUE); // Enable Admin button
wb_set_text($statusbar_mongo, " Servers running"); // Inform user
}
else{ // Stop server
if(mongo_client_running()){ // Client must be stopped before Mongo Server
$str = "Before you can stop MongoDB \n";
$str .= "Please close Mongo Client \n\n";
$str .= "Type EXIT to close client\n";
$str .= "Data from RAM needs to be written to disk.\n";
wb_message_box($window, $str, "CLIENT RUNNING", WBC_INFO);
wb_set_text($statusbar_mongo, " Clienr running"); // Inform user
break;
}
else{ // Client not running
//== Stop Apache
$cmd = "../../usr/local/php/php.exe -n ../main/stop_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Stopping Apache"); // Inform user
//== Stop MongoDB
stop_mongo_no_auth();
wb_set_text($statusbar_mongo, " Stopping MongoDB"); // Inform user
//==Set button text
wb_set_text(wb_get_control($window, ID_DB_BUTTON),START_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), FALSE); // DISABLE Client button
wb_set_enabled(wb_get_control($window, ID_PHPMOADMIN_BUTTON), FALSE); // Disable Test button
wb_set_text($statusbar_mongo, " Servers stopped"); // Inform user
}
}
break;
//================================================ END Start-Stop Servers ==
//=== Start Client =========================================================
case ID_CLIENT_BUTTON: // Button
if(mongo_client_running()){ // Client must be stopped before Mongo Server
wb_set_text($statusbar_mongo, " No action taken client already running"); // Inform user
break;
}
else{
client_no_auth(); // Start a cmd window and run mohgo command line interface
wb_set_text($statusbar_mongo, " Client started"); // Inform user
}
break;
//===================================================== END Start Client ===
//=== Open command window ==================================================
// Open a command window in folder bin
case ID_OPEN_CMD_BUTTON: // Button
open_cmd_window();
break;
//============================================== END Open command window ===
//=== Display help info ====================================================
case ID_HELP_BUTTON: // Button
wb_exec('Notepad',INFO_TXT);
break;
//================================================ END Display help info ===
case IDCLOSE: // Constant IDCLOSE (8) predefined
wb_destroy_window($window); // Destroy the window
break;
}
}
//================================================ END 4) Handler Function ===
Test
Run Run_mongo_db.bat
- Check server functions as expected
- Check client has access to the server
- Perform other tests as required
- Finally test Stop server works
Summary
At this stage we have a fully working plugin.
All that remains is to add functionality to phpMoAdmin button and clean up covered on next page.